CN103073188A - Pore-free sinter molding microcrystal jade and manufacturing technology - Google Patents
Pore-free sinter molding microcrystal jade and manufacturing technology Download PDFInfo
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- CN103073188A CN103073188A CN 201310002228 CN201310002228A CN103073188A CN 103073188 A CN103073188 A CN 103073188A CN 201310002228 CN201310002228 CN 201310002228 CN 201310002228 A CN201310002228 A CN 201310002228A CN 103073188 A CN103073188 A CN 103073188A
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Abstract
The invention discloses a pore-free sinter molding microcrystal jade and a manufacturing technology, and belongs to the technical field of glass ceramics. The pore-free sinter molding microcrystal jade is characterized by comprising raw mineral materials occupying 75-85% of the total weight and auxiliary chemical raw materials occupying 15-25% of the total weight. The raw mineral materials are quartz sand, calcite, potassium feldspar, fluor, dolomite; and the auxiliary chemical raw materials are aluminum oxide, sodium carbonate, potassium carbonate, sodium nitrate, and zinc white. The production technology of the sinter molding microcrystal jade comprises high-temperature leveling, low-temperature nucleation and devitrification. The sinter molding microcrystal jade section has a texture of a natural jade, the surface and section are pore-free and take transparent and semitransparent jade shapes. The sinter molding microcrystal jade has the moist degree and waxy texture of the natural jade, has high toughness and excellent strength.
Description
Technical field
A kind of pore-free sinter molding microcrystalline jade and production technique belong to the microcrystalline jade technical field, relate to a kind of microcrystalline jade, and pass through the manufacturing production technique of sintering process.
Background technology
Microcrystalline jade claims again devitrified glass or glass-ceramic.It is a kind of novel material of construction.It has the dual nature of glass and pottery, and the atomic arrangement of simple glass inside is not have well-regulatedly, and this also is one of reason of Glass breadks easily.And microcrystalline jade is by crystal composition, and atomic arrangement is regular.So microcrystalline jade is higher than the brightness of pottery, and is stronger than glass toughness.
Below be the method for two kinds of traditional production microcrystalline jades:
One, the particle method is burnt till microcrystalline jade: this microcrystalline jade is CaO-Al
2O
3-SiO
2The series microcrystalline jade mostly is crystallization under the Surface Crystallization mechanism and the microcrystalline jade that obtains, and its principal crystalline phase is the wollastonite phase.The shortcoming of this production method is: 1, tone is single, and material does not have beautiful texture; 2, material surface, section void content height; 3, material fragility is large, and the processing and fabricating difficulty is not easy machine-shaping.
Two, rolling process is produced microcrystalline jade: this microcrystalline jade mostly is SiO
2-MgO-CaO-R
2O-F system microcrystalline jade mostly is the fluorine emulsion opal glass and contains a small amount of crystal, and its principal crystalline phase comprises diopside, akermanite, monticellite etc.The shortcoming of this production method is: 1, the sheet material tone is single, without decorative pattern, without stereoscopic sensation, lacks variation; 2, material fragility is large, is not easy machine-shaping.
In view of the production status of present microcrystalline jade, the present invention produces surface, section pore-free by the method for sinter molding, is transparent or semitransparent beautiful matter shape, and the microcrystalline jade of the moist degree of natural jade and wax sense is arranged.Its toughness of material is good, and intensity is high, the machinable engraving.
Summary of the invention
The technical problem to be solved in the present invention is: overcomes the deficiencies in the prior art, a kind of pore-free sinter molding microcrystalline jade and production technique is provided, and microcrystalline jade of the present invention surface, section pore-free, good toughness, intensity is high, the machinable engraving.
The technical solution adopted for the present invention to solve the technical problems is: a kind of pore-free sinter molding microcrystalline jade is characterized in that: be comprised of 75% ~ 85% the raw mineral materials that accounts for gross weight and 15% ~ 25% the auxiliary chemical raw materials that accounts for gross weight;
The weight part of described raw mineral materials consists of: 50 ~ 70 parts of quartz sands, 15 ~ 25 parts in calcite, 0 ~ 15 part of potassium felspar sand, 4 ~ 6 parts in fluorite, 2 ~ 3 parts of rhombspars;
The weight part of described auxiliary chemical raw materials consists of: 0 ~ 8 part in aluminum oxide, 4 ~ 10 parts in yellow soda ash, 0 ~ 10 part in salt of wormwood, 2 ~ 3 parts of SODIUMNITRATE, 4 ~ 5 parts in zinc oxide.
The mass percent of chemical constitution is in its raw material: SiO
245% ~ 60%, Al
2O
35% ~ 10%, CaO15% ~ 25%, F2% ~ 5%, Na
2O5% ~ 12%, K
2O5% ~ 10%, ZnO5% ~ 8% and trace impurity.
The volume density of described microcrystalline jade is 2.7 ~ 3.2g/cm
3, folding strength is 90 ~ 95MPa, and ultimate compression strength is 500 ~ 550MPa, and Mohs' hardness is 7.5 ~ 7.8kg/cm, and impelling strength is 5.0 ~ 5.5kj/cm
3, surface, section pore-free.
The production technique of above-mentioned a kind of pore-free sinter molding microcrystalline jade is characterized in that, its processing step is:
1, batching design: above-mentioned raw materials through accurate weighing, is stirred 5 ~ 8min by stirrer and evenly mixes;
2, high temperature melting: will mix raw material and evenly drop into high-temperature melting furnace, and at 1450 ~ 1500 ℃ of fusing 3 ~ 6h, form qualified glass metal by homogenizing, clarification;
3, work in-process moulding: qualified glass metal forms qualified work in-process by the tear drop method;
4, sinter molding: qualified work in-process are carried out first high-temperature stream put down in shuttle kiln, inject mould by spout orifice, carry out again low temperature nucleation, crystallization, annealing, form the microcrystalline jade blank;
5, precision work: the microcrystalline jade blank that sinter molding is good, cut, engraving, polishing as required.
Wherein, the implementation technique of step 4 sinter molding is:
1) qualified work in-process are contained in shuttle kiln and carry out sintering thermal treatment, rise to top temperature by room temperature and reach 1080 ~ 1100 ℃, insulation 40 ~ 120min makes the product surface levelling, injects mould by spout orifice;
2) make product cool to 630 ~ 670 ℃ by mechanical means air draft cooling, secondary temperature elevation to 780 ~ 820 ℃ insulation 100 ~ 150min makes its nucleation, crystallization again, and annealing drops to room temperature again, forms the microcrystalline jade blank.
Preferably, the described time that is raised to described top temperature by room temperature of step 1) is controlled at 4 ~ 72h; Heating-up time increases with the qualified work in-process thickness of glass that uses and prolongs.
The surperficial levelling of material elder generation in the described sinter molding, lower the temperature nucleation, crystallization can be discharged the gas that produces in the product sintering in this process again, make product surface, section pore-free.Traditional microcrystalline jade sintering process is first low temperature nucleation, crystallization, and rear high temperature levelling causes pore to be difficult for getting rid of, and void content is high.
Table 1: the performance comparison of product of the present invention and traditional microcrystalline jade
In the table 1 pore in single pore in every square meter greater than more than the 0.05mm.
Compared with prior art, the beneficial effect that the present invention's a kind of pore-free sinter molding microcrystalline jade and production technique have is: microcrystalline jade production technique of the present invention is by exclusive a kind of sintering process moulding, as required production products of different specifications, be different from rolling process thickness, width etc. are restricted.The section of a kind of sinter molding microcrystalline jade of the present invention has the texture of natural jade, surface, section pore-free, and toughness of material intensity is good.Product microcrystalline jade of the present invention is transparent or semitransparent beautiful matter shape, the beautiful matter microcrystalline jade of the moist degree of natural jade and wax sense is arranged, the machinable engraving.Can be used for indoor and outdoor and decorate making, furniture, vessel manufacturing etc.
Embodiment
Below by specific embodiment a kind of pore-free sinter molding microcrystalline jade of the present invention and production technique are described further, wherein embodiment 1 is most preferred embodiment.
Embodiment 1
1, batching design: select proportioning raw materials (by weight), wherein main raw material according to material composition: 60 parts of quartz sands, 18 parts in calcite, 5 parts in fluorite, 3 parts of rhombspars; Auxiliary material: 7 parts in aluminum oxide, 4 parts in yellow soda ash, 4 parts in salt of wormwood, 5 parts in zinc oxide, 2 parts of SODIUMNITRATE.Alleged raw material is stirred 7min by stirrer, make its even mixing.
2, high temperature melting: will mix raw material and evenly drop into high-temperature melting furnace, and at 1470 ℃ of fusing 4h, form qualified glass metal by homogenizing, clarification.
3, work in-process moulding: qualified glass metal is made the sheet glass of thickness 4mm, diameter 130mm by the method for tear drop, forms qualified work in-process.
4, sinter molding:
A, heat-treat by satisfying formula klining knot, work in-process are contained in the kiln furnitures by every square meter 54kg, put into kiln car and burn till, at the uniform velocity heat up to 1100 ℃ with 8h from room temperature, insulation 60min sees its product surface levelling by vision slit, injects mould by spout orifice.
B, make product cool to 650 ℃ by smoke exhaust fan air draft cooling, secondary temperature elevation to 800 ℃ insulation 130min makes its nucleation, crystallization again, and annealing drops to room temperature again, forms the microcrystalline jade blank.
5, precision work: the microcrystalline jade blank that sinter molding is good, cut, polish, make it become 18mm sheet material.
6, this small product size density 3.2g/cm3, folding strength 94MPa, ultimate compression strength 510MPa, Mohs' hardness 7.5kg/cm, impelling strength 5.3kj/cm3, void content 0.
Embodiment 2
1, batching design: select proportioning raw materials (by weight), wherein main raw material according to material composition: 55 parts of quartz sands, 10 parts of potassium felspar sands, 23 parts in calcite, 5 parts in fluorite, 3 parts of rhombspars; Auxiliary material: 10 parts in yellow soda ash, 5 parts in zinc oxide, 2 parts of SODIUMNITRATE.Alleged raw material is stirred 6min by stirrer, make its even mixing.
2, high temperature melting: will mix raw material and evenly drop into high-temperature melting furnace, and at 1490 ℃ of fusing 4h, form qualified glass metal by homogenizing, clarification.
3, work in-process moulding: qualified glass metal is made the sheet glass of thickness 6mm, diameter 120mm by the method for tear drop, forms qualified work in-process.
4, sinter molding:
A, heat-treat by satisfying formula klining knot, work in-process are contained in the kiln furnitures by every square meter 54kg, put into kiln car and burn till, at the uniform velocity heat up to 1090 ℃ with 12h from room temperature, insulation 100min sees its product surface levelling by vision slit, injects mould by spout orifice.
B, make product cool to 630 ℃ by smoke exhaust fan air draft cooling, secondary temperature elevation to 820 ℃ insulation 100min makes its nucleation, crystallization again, and annealing drops to room temperature again, forms the microcrystalline jade blank.
5, precision work: the microcrystalline jade blank that sinter molding is good, cut, polish, make it become 18mm sheet material.
6, this small product size density 2.7g/cm3, folding strength 92MPa, ultimate compression strength 530MPa, Mohs' hardness 7.8kg/cm, impelling strength 5.3kj/cm3, void content 0.
Embodiment 3
1, batching design: select proportioning raw materials (by weight), wherein main raw material according to material composition: 70 parts of quartz sands, 25 parts in calcite, 4 parts in fluorite, 2 parts of rhombspars; Auxiliary material: 6 parts in aluminum oxide, 5 parts in yellow soda ash, 10 parts in salt of wormwood, 5 parts in zinc oxide, 3 parts of SODIUMNITRATE.Alleged raw material is stirred 5min by stirrer, make its even mixing.
2, high temperature melting: will mix raw material and evenly drop into high-temperature melting furnace, and at 1450 ℃ of fusing 6h, form qualified glass metal by homogenizing, clarification.
3, work in-process moulding: qualified glass metal is made the sheet glass of thickness 2mm, diameter 100mm by the method for tear drop, forms qualified work in-process.
4, sinter molding:
A, heat-treat by satisfying formula klining knot, work in-process are contained in the kiln furnitures by every square meter 54kg, put into kiln car and burn till, at the uniform velocity heat up to 1100 ℃ with 4h from room temperature, insulation 40min sees its product surface levelling by vision slit, injects mould by spout orifice.
B, make product cool to 650 ℃ by smoke exhaust fan air draft cooling, secondary temperature elevation to 800 ℃ insulation 120min makes its nucleation, crystallization again, and annealing drops to room temperature again, forms the microcrystalline jade blank.
5, precision work: the microcrystalline jade blank that sinter molding is good, cut, polish, make it become 18mm sheet material.
6, this small product size density 2.8g/cm
3, folding strength 95MPa, ultimate compression strength 500MPa, Mohs' hardness 7.5kg/cm, impelling strength 5kj/cm
3, void content 0.
Embodiment 4
1, batching design: select proportioning raw materials (by weight), wherein main raw material according to material composition: 58 parts of quartz sands, 20 parts in calcite, 5 parts in fluorite, 3 parts of rhombspars; Auxiliary material: 8 parts in aluminum oxide, 10 parts in yellow soda ash, 4 parts in salt of wormwood, 4 parts in zinc oxide, 2.5 parts of SODIUMNITRATE.Alleged raw material is stirred 8min by stirrer, make its even mixing.
2, high temperature melting: will mix raw material and evenly drop into high-temperature melting furnace, and at 1480 ℃ of fusing 5h, form qualified glass metal by homogenizing, clarification.
3, work in-process moulding: qualified glass metal is made the sheet glass of thickness 6mm diameter 120mm by the method for tear drop, forms qualified work in-process.
4, sinter molding:
A, heat-treat by the shuttle kiln sintering, work in-process are contained in the kiln furnitures by every square meter 150kg, put into kiln car and burn till, at the uniform velocity heat up to 1080 ℃ with 12h from room temperature, insulation 90min sees its product surface levelling by vision slit, injects mould by spout orifice.
B, make product cool to 630 ℃ by smoke exhaust fan air draft cooling, secondary temperature elevation to 820 ℃ insulation 100min makes its nucleation, crystallization again, and annealing drops to room temperature again, forms the microcrystalline jade blank.
5, precision work: the microcrystalline jade blank that sinter molding is good, cut, polish, make it become the 60mm thick material, but this product Carving Machining is made large part.
6, this small product size density 2.9g/cm
3, folding strength 93MPa, ultimate compression strength 520MPa, Mohs' hardness 7.8kg/cm, impelling strength 5.2kj/cm
3, void content 0.
Embodiment 5
1, batching design: select proportioning raw materials (by weight), wherein main raw material according to material composition: 50 parts of quartz sands, 15 parts of potassium felspar sands, 15 parts in calcite, 6 parts in fluorite, 3 parts of rhombspars; Auxiliary material: 10 parts in yellow soda ash, 4 parts in zinc oxide, 3 parts of SODIUMNITRATE.Alleged raw material is stirred 6min by stirrer, make its even mixing.
2, high temperature melting: will mix raw material and evenly drop into high-temperature melting furnace, and at 1500 ℃ of fusing 3h, form qualified glass metal by homogenizing, clarification
3, work in-process moulding: qualified glass metal is made the sheet glass of thickness 10mm diameter 150mm by the method for tear drop, forms qualified work in-process.
4, sinter molding:
A, shuttle kiln sintering are heat-treated, and work in-process are pressed every square meter 1200kg.Be contained in the kiln furnitures, put into kiln car and burn till, at the uniform velocity heat up to 1090 ℃ with 72h from low temperature, insulation 120min sees its product surface levelling by vision slit, injects mould by spout orifice.
B, make product cool to 670 ℃ by smoke exhaust fan air draft cooling, secondary temperature elevation to 780 ℃ insulation 150min makes its nucleation, crystallization again, and annealing drops to room temperature again, forms the microcrystalline jade blank.
5, precision work: the microcrystalline jade blank that sinter molding is good, it becomes the thick large sheet material of 400mm, by large-scale cutting facility its part is cut to the thick arc of 8mm, is fit to the moulding finishings such as large cylindrical.
6, this small product size density 3.0g/cm
3, folding strength 90MPa, ultimate compression strength 550MPa, Mohs' hardness 7.6kg/cm, impelling strength 5.5kj/cm
3, void content 0.
The above only is preferred embodiment of the present invention, is not to be the restriction of the present invention being made other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solution of the present invention content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment does, still belongs to the protection domain of technical solution of the present invention according to technical spirit of the present invention.
Claims (6)
1. pore-free sinter molding microcrystalline jade is characterized in that: be comprised of 75% ~ 85% the raw mineral materials that accounts for gross weight and 15% ~ 25% the auxiliary chemical raw materials that accounts for gross weight;
The weight part of described raw mineral materials consists of: 50 ~ 70 parts of quartz sands, 15 ~ 25 parts in calcite, 0 ~ 15 part of potassium felspar sand, 4 ~ 6 parts in fluorite, 2 ~ 3 parts of rhombspars;
The weight part of described auxiliary chemical raw materials consists of: 0 ~ 8 part in aluminum oxide, 4 ~ 10 parts in yellow soda ash, 0 ~ 10 part in salt of wormwood, 2 ~ 3 parts of SODIUMNITRATE, 4 ~ 5 parts in zinc oxide.
2. a kind of pore-free sinter molding microcrystalline jade according to claim 1 is characterized in that the mass percent of its chemical constitution is: SiO
245% ~ 60%, Al
2O
35% ~ 10%, CaO15% ~ 25%, F2% ~ 5%, Na
2O5% ~ 12%, K
2O5% ~ 10%, ZnO5% ~ 8% and trace impurity.
3. a kind of pore-free sinter molding microcrystalline jade according to claim 1, it is characterized in that: the volume density of described microcrystalline jade is 2.7 ~ 3.2g/cm
3, folding strength is 90 ~ 95MPa, and ultimate compression strength is 500 ~ 550MPa, and Mohs' hardness is 7.5 ~ 7.8kg/cm, and impelling strength is 5.0 ~ 5.5kj/cm
3, surface, section pore-free.
4. the production technique of each described pore-free sinter molding microcrystalline jade of claim 1 ~ 3 is characterized in that processing step is:
4.1, batching design: above-mentioned raw materials through accurate weighing, is stirred 5 ~ 8min by stirrer and evenly mixes;
4.2, high temperature melting: will mix raw material and evenly drop into high-temperature melting furnace, at 1450 ~ 1500 ℃ of fusing 3 ~ 6h, form qualified glass metal by homogenizing, clarification;
4.3, the work in-process moulding: qualified glass metal forms qualified work in-process by the tear drop method;
4.4, sinter molding: qualified work in-process are carried out first high-temperature stream in shuttle kiln flat, injects mould by spout orifice, carries out low temperature nucleation, crystallization, annealing again, forms the microcrystalline jade blank;
4.5, precision work: the microcrystalline jade blank that sinter molding is good, cut as required, engraving, polishing.
5. the production technique of a kind of pore-free sinter molding microcrystalline jade according to claim 4 is characterized in that, the implementation technique of described step 4.4 sinter molding is:
5.1, qualified work in-process be contained in shuttle kiln carry out sintering thermal treatment, rise to top temperature by room temperature and reach 1080 ~ 1100 ℃, insulation 40 ~ 120min makes the product surface levelling, injects mould by spout orifice;
5.2, make product cool to 630 ~ 670 ℃ by mechanical means air draft cooling, secondary temperature elevation to 780 ~ 820 ℃ insulation 100 ~ 150min makes its nucleation, crystallization again, annealing drops to room temperature again, forms the microcrystalline jade blank.
6. the production technique of a kind of pore-free sinter molding microcrystalline jade according to claim 5 is characterized in that: the described time that is raised to described top temperature by room temperature of step 5.1 is controlled at 4 ~ 72h.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103508728A (en) * | 2013-06-24 | 2014-01-15 | 徐传德 | Preparation method of jade article tableware |
| CN105417950A (en) * | 2015-12-24 | 2016-03-23 | 河北工业大学 | Microcrystalline material fluxing nucleating agent and preparation method thereof |
| CN108358453A (en) * | 2018-02-09 | 2018-08-03 | 贾有贵 | A kind of crystalline stone materials gravestone and preparation method thereof |
| CN109734311A (en) * | 2019-03-21 | 2019-05-10 | 云南云子文化产业发展有限公司 | Yunnan go formula and production method |
| CN112194474A (en) * | 2020-09-30 | 2021-01-08 | 佛山市景鑫达陶瓷机械有限公司 | Microcrystalline jade processing technology |
-
2013
- 2013-01-05 CN CN 201310002228 patent/CN103073188A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103508728A (en) * | 2013-06-24 | 2014-01-15 | 徐传德 | Preparation method of jade article tableware |
| CN105417950A (en) * | 2015-12-24 | 2016-03-23 | 河北工业大学 | Microcrystalline material fluxing nucleating agent and preparation method thereof |
| CN105417950B (en) * | 2015-12-24 | 2018-03-09 | 河北工业大学 | A kind of fluxing nucleator of micro crystal material and preparation method thereof |
| CN108358453A (en) * | 2018-02-09 | 2018-08-03 | 贾有贵 | A kind of crystalline stone materials gravestone and preparation method thereof |
| CN109734311A (en) * | 2019-03-21 | 2019-05-10 | 云南云子文化产业发展有限公司 | Yunnan go formula and production method |
| CN112194474A (en) * | 2020-09-30 | 2021-01-08 | 佛山市景鑫达陶瓷机械有限公司 | Microcrystalline jade processing technology |
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Application publication date: 20130501 |